PING lan.saas.ctrl.net.cn (121.4.158.235) 56(84) bytes of data.
64 bytes from 121.4.158.235 (121.4.158.235): icmp_seq=1 ttl=50 time=225 ms
64 bytes from 121.4.158.235 (121.4.158.235): icmp_seq=2 ttl=50 time=225 ms
64 bytes from 121.4.158.235 (121.4.158.235): icmp_seq=3 ttl=50 time=222 ms

--- lan.saas.ctrl.net.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 222.423/224.368/225.559/1.491 ms